# documentación de Django - 3.2.11.dev

# Authenticating against Django’s user database from Apache

Since keeping multiple authentication databases in sync is a common problem when dealing with Apache, you can configure Apache to authenticate against Django’s authentication system directly. This requires Apache version >= 2.2 and mod_wsgi >= 2.0. For example, you could:

- Serve static/media files directly from Apache only to authenticated users.
- Authenticate access to a Subversion repository against Django users with a certain permission.
- Allow certain users to connect to a WebDAV share created with mod_dav.

Nota

If you have installed a custom user model and want to use this default auth handler, it must support an `is_active` attribute. If you want to use group based authorization, your custom user must have a relation named “groups”, referring to a related object that has a “name” field. You can also specify your own custom mod_wsgi auth handler if your custom cannot conform to these requirements.

## Authentication with `mod_wsgi`

Nota

The use of `WSGIApplicationGroup %{GLOBAL}` in the configurations below presumes that your Apache instance is running only one Django application. If you are running more than one Django application, please refer to the Defining Application Groups section of the mod_wsgi docs for more information about this setting.

Make sure that mod_wsgi is installed and activated and that you have followed the steps to setup Apache with mod_wsgi.

Next, edit your Apache configuration to add a location that you want only authenticated users to be able to view:

    WSGIScriptAlias / /path/to/mysite.com/mysite/wsgi.py
    WSGIPythonPath /path/to/mysite.com

    WSGIProcessGroup %{GLOBAL}
    WSGIApplicationGroup %{GLOBAL}

    <Location "/secret">
        AuthType Basic
        AuthName "Top Secret"
        Require valid-user
        AuthBasicProvider wsgi
        WSGIAuthUserScript /path/to/mysite.com/mysite/wsgi.py
    </Location>

The `WSGIAuthUserScript` directive tells mod_wsgi to execute the `check_password` function in specified wsgi script, passing the user name and password that it receives from the prompt. In this example, the `WSGIAuthUserScript` is the same as the `WSGIScriptAlias` that defines your application that is created by django-admin startproject.

Using Apache 2.2 with authentication

Make sure that `mod_auth_basic` and `mod_authz_user` are loaded.

These might be compiled statically into Apache, or you might need to use LoadModule to load them dynamically in your `httpd.conf`:

    LoadModule auth_basic_module modules/mod_auth_basic.so
    LoadModule authz_user_module modules/mod_authz_user.so

Finally, edit your WSGI script `mysite.wsgi` to tie Apache’s authentication to your site’s authentication mechanisms by importing the `check_password` function:

    import os

    os.environ['DJANGO_SETTINGS_MODULE'] = 'mysite.settings'

    from django.contrib.auth.handlers.modwsgi import check_password

    from django.core.handlers.wsgi import WSGIHandler
    application = WSGIHandler()

Requests beginning with `/secret/` will now require a user to authenticate.

The mod_wsgi access control mechanisms documentation provides additional details and information about alternative methods of authentication.

### Authorization with `mod_wsgi` and Django groups

mod_wsgi also provides functionality to restrict a particular location to members of a group.

In this case, the Apache configuration should look like this:

    WSGIScriptAlias / /path/to/mysite.com/mysite/wsgi.py

    WSGIProcessGroup %{GLOBAL}
    WSGIApplicationGroup %{GLOBAL}

    <Location "/secret">
        AuthType Basic
        AuthName "Top Secret"
        AuthBasicProvider wsgi
        WSGIAuthUserScript /path/to/mysite.com/mysite/wsgi.py
        WSGIAuthGroupScript /path/to/mysite.com/mysite/wsgi.py
        Require group secret-agents
        Require valid-user
    </Location>

To support the `WSGIAuthGroupScript` directive, the same WSGI script `mysite.wsgi` must also import the `groups_for_user` function which returns a list groups the given user belongs to.

    from django.contrib.auth.handlers.modwsgi import check_password, groups_for_user

Requests for `/secret/` will now also require user to be a member of the «secret-agents» group.